For the U.S., Kerry is to sign the agreement Friday and then President Obama will ratify it before he leaves office in December, a senior U.S. official told CBS News in a conference call this week.
Time Frame. The average dolphin species can stay underwater for as long as eight to 10 minutes; some can remain submerged while holding their breath for 15 minutes. Dolphins breathe through their blowhole, which has a muscular flap that covers it when they go under water, keeping water out of their lungs. Size.
Answers. Best Answer: People tend to hold their breath for a longer period of time when they are underwater then they do when they are on land. The current world record for breathing underwater stands at a mere two seconds short of nine minutes, that is at eight minutes and 58 seconds.f the temperature of the water is less than 60 degrees Fahrenheit, the person can hold his or her breath for only as third of the average time that is for duration of between 15 seconds and 45 seconds.